UPack an ArcBest brand offers nationwide moving services for people moving out of state.A you pack we drive company U Pack is designed to help consumers lower the costs of long distance moving by doing some of the work themselves.You pack load and unload your items and we handle the driving.UPack an ArcBest brand offers nationwide moving services for people moving out of state.A you pack we drive company U Pack is designed to help consumers lower the costs of long distance moving by doing some of the work themselves.You pack load and unload your items and we handle the driving.